I guarantee that when Amazon finally starts selling a front-lit e-ink Touch Kindle they will out-sell the front-lit Nook in an astonishingly short time. The average buyer knows the Kindle brand better than any other ereader. Amazon will sell millions of them before Christmas.
Whether they improve the current tech in ways other than adding a light, is what I am waiting to find out. I will buy one instantly if the tech is improved. I don't care about the light. If the rest of the specs are the same, I'll be looking for a deeply discounted Kindle Touch without a light.
I wish they would hurry up and make the announcement.